TypeScript Misc

A general-purpose TypeScript library providing utility types, runtime helpers, and testing matchers for projects using TypeScript ≥4.0. Current version 1.3.0, released April 2025; updates follow no strict cadence. Ships with full type declarations and includes peer dependencies on Jest utilities, making it a good fit for test suites that need extended matchers. Differentiator: first-class TypeScript support and integration with `jest-extended`, though its documentation is sparse.